Dr. Jennifer Cheng Shannon MD

What are delusions?Delusions are untrue and unrealistic beliefs of a person. A delusion separates the person from reality and imagination. It was previously known as "paranoid disorder", which is a type of serious mental disorder. People with this disorder usually experience delusions associated...

Is it Multiple Sclerosis?Although some of the symptoms of multiple sclerosis are common, there is no definitive pattern that applies to everyone. The symptoms of multiple sclerosis also resemble those of many other diseases. What sets the symptoms of MS apart from other conditions is time. In many...

Depression is a mental illness that consumes individuals, leaving them feeling helpless, hopeless, and sometimes useless. It can be caused by life experiences such as loss of a family member or mental trauma in an individual's life.Depression can occur to anyone, and for a vast majority affected,...

Introduction Tachypnea is a medical term, which means rapid and shallow breathing. This condition is often confused with hyperventilation, which is another type of abnormal breathing that is characterized by rapid but deep breathing. Both conditions are caused by carbon dioxide buildup in the...

Reported cases of ADHD have been on the rise lately. In fact, the U.S. Centers for Disease Control and Prevention reported that as many as 11% of children between the ages of four years old and 17 years old have been diagnosed with ADHD. ADHD is a disease characterized by ongoing patterns of...

Cognitive dissonance definitionPsychologically speaking, cognitive dissonance is the mental discomfort (stress) that a person undergoes when he/she goes through simultaneous contradiction of ideas, values, or beliefs when doing something that runs counter to one or more of the ideas, values, or...